28894151 has 32 divisors (see below), whose sum is σ = 35954688. Its totient is φ = 22861440.

The previous prime is 28894133. The next prime is 28894153. The reversal of 28894151 is 15149882.

It is a cyclic number.

It is not a de Polignac number, because 28894151 - 2⁶ = 28894087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28894153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 227450 + ... + 227576.

It is an arithmetic number, because the mean of its divisors is an integer number (1123584).

Almost surely, 2^28894151 is an apocalyptic number.

28894151 is a deficient number, since it is larger than the sum of its proper divisors (7060537).

28894151 is a wasteful number, since it uses less digits than its factorization.

28894151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231.

The product of its digits is 23040, while the sum is 38.

The square root of 28894151 is about 5375.3279899928. The cubic root of 28894151 is about 306.8574318488.

The spelling of 28894151 in words is "twenty-eight million, eight hundred ninety-four thousand, one hundred fifty-one".